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A/C vac leak, common areas?

Joined
Jun 20, 2002
Messages
2,509
Location
Tallahassee, FL
Corvette
none right now :(
I have a problem with my A/C... when I hit the gas, the air blows to the defrost.... I assume vac leak... the question is, where do I start looking? is there a most common area(s) to look at first? thanks!
 

-=Jeff=-

Well-known member
Joined
Feb 2, 2001
Messages
909
Location
Bartlett, IL. (Chicago Suburb)
Corvette
1990 ZR-1
There should be a check valve at the back of the intake. Start there, the Check Valve controls Vacuum to the AC and Cruise.
 
Joined
Jun 20, 2002
Messages
2,509
Location
Tallahassee, FL
Corvette
none right now :(
Thanks, the cruise control works though... (I am actually posting this AC problem for a friend with a 1995 and should say His cruise control works, and AC doesn't work)
 

topless82vette

Well-known member
Joined
Nov 1, 2001
Messages
910
Location
southern california
Corvette
1982 convertible (not factory) stock 350cfi auto
vettelt

i had thisproblem with my trans am once, sounds alot like your friends when passing someone or just getting over about 1/2 throttle the a/c would switch immediately from the vents to the defroster turn out to be the vacuum resevoir ( ball ) had a crack in it after GM replaced it a/c never did it again
 

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